Kandahar governor Humayun Azizi, who returned to the country on Wednesday after treatment for wounds he sustained in an attack on a guesthouse in Kandahar province, said the incident was unprecedented and that serious investigations are required.

He said the attack was plotted outside the Afghan borders and by regional intelligence agencies.

“It was horrific. Investigators will be appointed by the government and the details will be revealed later by relevant organizations,” Humayun told reporters upon his return.

He said he would return to his office in the near future. “I will go to Kandahar the day after tomorrow,” he said.

“The enemies should realize that the Afghan people are united and will never succumb to any plot compromising the security and stability of their country,” said Abdul Malik Sediqqi, deputy head of the Independent Directorate of Local Governance.

The attack on the guesthouse in Kandahar left at least 11 dead, including five UAE diplomats and the UAE ambassador who later succumbed to his injuries.